3M 900AST Series - Page 10

3M
™
Advanced Systems Tester 900AST Series
10
Units
Use the Units setup to change the units of
measurement for the 900AST tester.
Use the and keys to highlight the desired
option. Use the
key to select the parameter for
each unit of measurement.
Distance: Inches or Centimeters. This affects all
distances displayed in the 900AST tester.
Degrees: Fahrenheit or Centigrade. This affects all
temperatures used or displayed in the tester.
TDR: Vp (Velocity of Propagation) or m/µs (Meters
per Microsecond). This affects the conductor
velocity factor used by the TDR function. Vp is
normally represented as a fraction of the speed of
light and has a value less than one.
Use the
key to accept any changes and return.
Use the
key to return to the Welcome Screen
without making changes.